The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Feb. 29, 2012
Applicant:
Rodolfo E. Diaz, Phoenix, AZ (US);
Inventor:
Rodolfo E. Diaz, Phoenix, AZ (US);
Assignee:
General Atomics, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/36 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/36 (2013.01);
Abstract
A variable permeability antenna apparatus includes a first region configured for coupling with a feed of a radio frequency signal and a second region for transmitting the radio frequency signal. The permeability of material at the second region is greater than the permeability of material at the first region. Also, a spiral antenna for transmission or reception of radio frequency signals is disclosed.